Pin Carmen, Baranyi József
Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA, United Kingdom.
Appl Environ Microbiol. 2008 Apr;74(8):2534-6. doi: 10.1128/AEM.02402-07. Epub 2008 Feb 22.
After inoculation, the times to the first divisions are longer and more widely distributed for those Escherichia coli single cells that spent more time in the stationary phase prior to inoculation. The second generation times are still longer than the typical generation times in the exponential phase, and this extended the apparent lag time of the cell population. The greater the variability of the single-cell interdivision intervals, the shorter are both the lag time and the doubling time of the population.
接种后,对于那些在接种前处于稳定期时间更长的大肠杆菌单细胞,首次分裂的时间更长且分布更广泛。第二代时间仍然比指数期的典型代时更长,这延长了细胞群体的表观延迟期。单细胞分裂间隔的变异性越大,群体的延迟期和倍增时间就越短。